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Finding the Fourth Proportional to 354,290.16, 531,433.80 and 88,045.68

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Solution

The fourth proportional to 354,290.16, 531,433.80 and 88,045.68 is: 132,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,290.16 : 531,433.80 = 88,045.68 : x
  2. Step 2: Convert to fraction form
    354,290.16/531,433.80 = 88,045.68/x
  3. Step 3: Cross multiply
    354,290.16x = 531,433.80 × 88,045.68
  4. Step 4: Simplify right side
    354,290.16x = 46,790,450,295.98
  5. Step 5: Solve for x
    x = 46,790,450,295.98/354,290.16
  6. Step 6: Final answer
    x = 132,068.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.